Wedge for locomotive driving-boxes.



PATENTED DEC. 10, 1907.

W. J. BARRETT. WEDGE FOR LOGOMOTIVE DRIVING BOXES.

APPLICATION FILED FEB, 15, 1907.

5: SH ETSSHEET 1.

No. 873,148. PATEN'TED DEC. 10, 1907.

- W. J. BARRETT.

WEDGE FOR LOGOMOTIVE DRIVING BOXES.

APPLICATION FILED PEB.15, 190?.

2 SHEETS-SHEET 2.

llllllllllllllllllm munnggml! WLZZZ'amJBar/"dt Wigww WILLIAM J. BARRETT,OF CHICAGO, ILLINOIS.

WEDGE FOR LOCOMOTIVE DRIVING-BOXES.

Specification of Letters Patent.

Patented Dec. 10, 1907.

Application filed February 15. 1907- Serial No. 357.532.

T 0 all whom it may concern:

Be it known that I, WILLIAM J. BARRETT, a citizen of the United States,residing at Chicago, in the county of Cook and State of Illinois, haveinvented a new and useful Im provement in a WVedge for LocomotiveDriving-Boxes, ofwhich the following is a specification.

This invention relates to a device for adjusting wedges employed inconnection with drive boxes and binders.

It is customary to support the drive boxes within a frame or jaw, and tolock the same by means of a wedge leaving room for adj ust ment in orderto take up wear from the drive box.

The object of my invention is to improve upon the means heretoforeemployed for adjusting the wedge when it becomes necessary to tightenthe same to take up wear upon the drive box.

My invention consists of the novel features of construction, hereinafterfully described and pointed out in the claims.

In the drawings forming a part of this specificationz. Figure 1 is aside elevation of the drive wheel portion of a locomotive illustratingthe application of my invention, the drive axles being shown in sectionsand portions of a driving box being broken away. Fig. 2 is an enlargedside elevation of a portion of a binding frame or jaw, the drive axlebeing shown in section and a portion of the frame, driving box andwedge, being also shown in section. Fig. 3 is a face view of one of thewedges, a portion of the binder frame being shown in section, and myadjusting means being shown in elevation. Fig. 4 is a perspective viewof a wedge.

In these drawings A represents the jaws or binding frame in which isfitted a driving box A within which is journaled a drive axle Thepedestals A of the frame A are .connected by the usual pedestal bracesB, bolted in position in the usual manner. The wedge D consists of ametal plate having two side flanges D which are beveled or tapered adjacent their upper ends as shown at D Through the pedestal braces D passtwo bolts E and E. The bolt E has its upper end threaded into the lowerportion of the wedge D, and is locked by a suitable nut F and a jam nutF. The bolt E bears at its upper end upon the lower edge of the wedge Dand carries a dead nut G which is provided with a collar G which collarfits within a suitable recess B formed in the pedestal brace B.

The bolt E also carries a nut H which bears against the under face ofthe pedestal brace. It will be obvious that by means of the nuts F and Hwhich are the adjusting nuts, the bolts E and E may be elevated. orlowered. By a construction of this kind the Wedge D is held by andoperated upon by two bolts, only one of which enters the wedge. A firmsupport is thereby obtained without at the same time providing a supportso rigid that it will be liable to break under strain and continual jarnecessarily placed upon it.

Having thus fully described my invention,

what I claim as new and desire to secure by Letters Patent, is

The combination with a driving box wedge, and a pedestal brace, of anadjusting bolt passing loosely through said brace, the lower end portionof the Wedge having a vertically arranged threaded socket receiving theupper end portion of the adjusting bolt, an adjusting nut upon the lowerend portion of said bolt, said nut bearing upon the under side of thepedestal brace, a second adjusting bolt passing loosely through thepedestal brace and bearing atits upper end upon the lower end of thewedge, a dead nut arranged upon said bolt, said dead nut having acollar, and the pedestal brace having a socket to receive the collar,and an adjusting nut upon the last mentioned adjusting bolt.

WILLIAM J. BARRETT.

Witnesses KATHERINE DAVITT, CLARA RANsTEAD.

